package com.kuang.operator;
//运算符
public class Demo07 {
    public static void main(String[] args) {
        int a=10;
        int b=30;
        a+=b;//a=a+b;
        System.out.println(a);
        a-=b;//a=a-b;
        System.out.println(a);
        System.out.println("=========");
        //字符串连接符
        System.out.println(a+b);
        System.out.println("=========");
        System.out.println(""+a+b);
        System.out.println(+a+b+"");

    }
}
